[dt_codepaths_init] will be using HIGHLY EXPERIMENTAL plain OpenMP SIMD codepath.
[dt_codepaths_init] SSE2-optimized codepath is disabled or unavailable.
[dt_codepaths_init] expect a LOT of functionality to be broken. you have been warned.

I think this warning should be removed unless there is a very good reason to keep it. I never observes any issues.